Set sand origin when command is given

mosfet/protocol/managers.py

@@ -116,7 +116,7 @@ class ChunksManager:
         if not c: return None
         c.set_block_at(x%16, y%16, z%16, block)
 
-    def check_loaded(self, position, steps):
+    def check_loaded(self, position, steps=1):
         x, y, z = utils.pint(position)
         player_chunk = (x//16, 1, z//16)
         for i in range(steps): # TODO: base off render_distance?